Coil-forming machine



W. SAGL.

COlL FORMING MACHINE.. APPLICATION min' s5PT.14. 192|.

W. SAGL. COIL FORMING MACHINE. APPLICATION man SEPT. 14. 1921.

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1,436,322.- Patented No?. 211, 11922..

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W. SAGL.

con mamme MACHINE.- APPLICATION FILED 55??,14, 192|.

Patented Nov. 21, 1922;.

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Z'NvE/v TQFP: W/LL/AM SAQLQ ATTORNEYS.

Patented Nov. 21, 1922.

UNETED STATES WILLIAM SAGL, OF MINNEAPOLIS,` MINNESOTA.

COIL-FORMING MACHINE.

Application filed September 14, 1921.

To all whom it may concern.'

Be it known that I, WILLIAM SAGL, a citi- Zen of the United States,residing at Minneapolis, in the county of'Hennepin and State ofMinnesota, have invented certain new and useful Improvements inCoil-Forming Machines, of which the following is a specification.

My invention relates to coil forming machines, and an object is toprovide for winding and forming wire into elongated coils for use indynamos and electric motors. A further object is to provide a machine ofthis character which may be readily adjusted for varying the size andshape of the coils. Another object is to provide a machine of thischaracter in which the turns of wire when laid to form a coil will bedisposed in such manner as to have inclined or angular arrangement. f

The full objects and advantages of my invention will appear inconnection with the detailed description, and the novel featuresembodied in my inventive idea will be particularly pointed out in theclaims.

In thev accompanying drawings which illustrate one embodiment of myinvention, Fig. 1 is a top plan view. Fig. 2 is a view in side elevationwith a small portion in section. Fig. 3 is a view in vertical section onthe line 3 3 of Fig. 1. Fig. 4 is a view in vertical section on the line4 4 of Fig. 1. Fig. 5 is a view in vertical section on the line 5 5 ofFig. 1. Fig. 6 is a fragmentary view on the line 6 6 of Fig. 1. Fig. 7is a view in longitudinal section showing the manner of winding the wireto form a coil. Fig. 8 is a plan view of the coil after it has beenwound but before it has been opened up. Fig. 9 is a plan view of thecoil after it has been opened up into finished condition.

Referring to the construction shown in the drawings, the numerallOdesignates in general the frame of the machine at the upper end of whichis an extended support 12 to which is fastened anelectric motor 14 and acasting 16 in which is embodied a gear casing 18. A worm 20 is securedto the extended shaft 22 of the motor 14 and this.

worm meshes with a worm gear 24 in the gear casing, and this worm gearis secured to one end of the shaft 26 is a head 28 to,

which are fastened upper and lower rods `30 Serial No. 500,554.

and 32 which extend at both sides of the heae? in parallel relation toeach other. Two jaws .34 and 36 are Slidably mounted on the rod 30, oneon each side of the'head 28. These jaws are provided with inclinedgrooves 37 for receiving the wire when it is laid to form a coil.Rotatably mounted in a collar 38 secured t0 the head 28 is a rod 40having opposite end portions 42 and 44 which are threaded right and lefthand to engage corresponding threads in threaded openings in the jaws 34and 36.v The rod 40 is provided with a squared end 46 by means of whichit may be turned to adjust the jaws 34 and 36 toward and away from eachother. Rotatably mounted in a collar 48 is a rod 50 having opposite endportions 52 and 54 which are threaded right and left hand to engagecorresponding threads in threaded openings in jaws 56 and 58 .which haveinclined grooves 591m which the wire is placed when the coil is beingformed. The rod 50 is provided with a'squared .end 60 by'means of whichthese vlatter jaws may be adjusted toward and away from each other.4 Inorder that these jaws may be moved in this manner, they are providedwith dovetailed recesses which receive dovetailed projections 62 formedon the lower edge of a barlilre member 64 carried by the collar 48. Themember 64 is mounted for transverse movement upon a pair of rods 66 and68, the inner ends of which are threaded into lugs on the head 28 asbest shown in Fig. 5. Slidably mounted upon the opposite ends of therods 30 and 32 aresupports 70 and 72 which contain openings providedwith right and left handrthreads which areengaged by correspondingthreads upon the opposite portions of a shaft 74. The ends of the rods30 and 32 are connected by plates 76 and 78 which are provided withbearings for the shaft 74. Adjustable stops 8O and 82 are held indesired position upon the rod 30 by means of set screws, and these stopsserve to limit the outward position of the su ports 70 and 72. Forrotating the shaft 4 at the proper time, I mount a small electric motor84 upon a bracket 86 adjacent one end 0f the shaft. -The shaft of thismotor is provided with a gear 88 which meshes with a gear 90 secured tothe shaft 74. When it is desired to rotate this shaft and shift thesupports 70 and 72 suitable wires are connected to the motor forsupplying electricity thereto. A bolt 9,2 is screwed at one end into jthe support and mounted on this bolt is a wire receivingrv member havinga corrugated cylindrical surface 94 terminating in a conical surface 96which is terminated by a grooved member 98. A bolt 100 is similarlyscrewed into the support 72 and mounted on this bolt is a wire receivingmember having a corrugated cylindrical surface 102 terminating in aconical surface 104. Referring to Fig. 2, the numeral 106 Vdesignates aleading-in wire for conducting electric current to a movable switchmember 108 adapted to be moved into contact with a post 11'0 to which isconnected a wire 112 leading to a Contact member 114 attached to thecore 116 of a solenoid having a coil 118. The Contact member 114 isnormally held in contact with one terminal of a wire 120, this wirebeing connected with the motor 14 for supplyingcurrent thereto and areturn wire 122 being attached to the motor. Vhen it is desired to stopthe motor, the switch member 108' is moved into contact with a post 124which is connected by a wire 126"with one terminal of the solenoid coil118, the other terminal thereof' being connected by a wire 128 with acoil 130 of one member of an electric brake. This coil is connected by awire 132 withy the return wire122'. The coil 130 surrounds the shaft 26and when energized attracts a slid'able member 134 havingv a frictiondisc 136; secured thereto' and containing'a disc 138 keyed to the shaft26 so' that when the discs engage', the rotation of the shaft 26 isquicklyT stopped.

The operation and advantages of my invention will be readily understoodfrom the foregoing description. `Wire` for forming the coil is drawnfrom a reel or suitable supply of wire and the free end of this wiredesignated at W is attached to a hook inem- `ber 140'l adapted forengagement with the grooved member v98. pon starting the motor 14, thewire will be laid into thegrooves 37 of the jaws 34 and 36 and into thegrooves l59 of the jaws 56 and 58 as shown in Fig'.f 5 andwill passaround the wire receiving members as shown in Fig'. 4. llVhen thedesired quantity of wire has thus been formed into a coil, the switch108 is moved to, bring it in Contact with` the post 124 and the rotationof the shaft264r carrying the head. 28 and the' rods 30 and 32 isstopped. The coil C will then appear in plan as shown in Fig. 8. Theoperator then starts the motor 84 so as to somewhat retract the v wirereceiving members and stops the motor when these members have beencaused to move toward each other the proper amount. The operator thengrasps the jaws 56 and 58 or parts associated therewith and causes themto' be pulled outwardly into the position` indicated in dotted lines inFig. 5. lIjhis causes the coil to assume the opened-up condition shownin Fig.'"9` with.

the portions A and B having an angular relationship to the end portionsof the coil. lt is obvious that the size and shape of the coil may bereadily varied by turning the screwthreaded rods 40 and 50 to adjust thepositions of the two pairs of jaws and by operating the motor 84 tobring the wire receiving members closerto orfurther from the head 28.Both pairs of jaws are readily re movable and may be replaced by otherpairs of jaws to still further vary the size of the coil. The 'use of mymachine results in the production of a very rigid coil which fits betterand remains more securely in place than would otherwise be the case. Italso results in a saving of wire. The motor 84 may be rotated in eitherdirection according to the manner inv which the supply wires areconnected thereto.

I claim 1. A coil forming machine comprising two sets of spaced jaws"having inclined recesses, wire receiving members positioned beyond saidjaws at both sides thereof and having inclined surfaces, said recessesand said surfaces being adapted to receive wire as it is laid to form acoil, and means whereby one set of jaws may be moved relatively to theother set to open out the coil after the same has been laid.

2. A coil forming machine comprising two sets of spaced jaws havinginclined recesses, means for adjusting the distance between the jaws ofeach set, wire receiving members positioned beyond said jaws at bothsides thereof and having inclined surfaces, means for adjusting thedistance betweensaid members, said recesses and said surfaces beingadapted to receive wire as it is laid to' from a coil, and means wherebyone set of jaws may be moved relatively to the other set t0 open out thecoil after the same has been laid.

3. A coil forming machine comprising a frame, a shaft rotatably mountedon said frame, an electric motor' for driving said shaft,l a headsecured to said shaft, two sets of spaced jaws carried by said head,eXtensions carried by said head, wire receiving members mounted on saidextensions, means whereby one set of jaws may be moved relatively to theother set to open out the coil after the same has been laid, an electricbrake forstopping the rotation of said head and permitting movement ofthe jaws, and means for simultaneously cutting ofi' the supply ofcurrent to said motor and for causing said brake to operate.

j 4. A coil forming machine comprising a frame, a shaft rotatablymounted on said frame, a head secured to'said shaft, two sets of spacedjaws carried `by said head, extensions carried byl saidl head,supports.slidably mounted on said extensions, wire receivfng members mounted onsaid supports, a1motor iso adapted t0 move said supports both toward andaway from each other, and means whereby one set of jaws may be movedrelatively to the other set to open out the coil after it has been laid.

5. A coil forming machine comprising a frame, a shaft rotatably mountedon said frame, an electric motor for driving said shaft, a head securedto said shaft, two sets of spaced jaws carried by said head, extensionscarried by said head, supports slidably mounted on said extensions, wirereceiving members mounted on said supports, a motor adapted to retractsaid supports,

f means whereby one set of jaws may be moved relatively to the other setto open out said coil after the same has been laid and after saidsupports have been retracted, and a brake for stopping rotation of saidhead when the supply of current t0 said first mentioned motor is cutolii'.

6. A coil forming machine comprising a frame, a shaft rotatably mountedon said frame, a head secured to said shaft, two sets of spaced jawscarried by said head, said jaws having inclined recesses, two parallelrods secured to said head, supports slidably mounted on the opposite endportions of said rods, a shaft having its opposite end portions threadedright and left hand and engaging corresponding threaded openings in saidsupports, means for rotating said threaded shaft in either direction,wire receiving members mounted on said supports, said members havingcylindrical surfaces terminating in conical surfaces, said recesses andsaid surfaces being adapted to receive wire as it is laid to form acoil, and a pair of transverse rods secured to said head, one set ofjaws being slidably mounted upon said rods whereby the coil may beopenedout after it has been laid.

In testimony whereof I hereunto aiix my signature.

WILLIAM SAGL.

